fundamental frequency fundamental frequencythe lowest frequency in a complex wave. Related Articles: Glossary: harmonic frequencyGlossary: harmonic distortionChanges in Baleen Whale VocalizationsAmazonian ManateePygmy Blue WhaleAfrican ManateeWhat happens when sound pressures are large?Marine mammals feedingIceberg CollisionsSpecialized Sounds in Cetacean Communication Chris Knowlton2018-06-13T13:21:18-05:00